Thermophysiological coupled analysis with COM, ES, and CFD
Thermophysiological coupled analysis with COM, ES, and CFD
复制标题
使用 COM、ES 和 CFD 进行热生理耦合分析
DOI：
10.1016/j.enbuild.2023.113132
复制
发表时间：
2023
影响因子：
6.7
通讯作者：
Seiya Niihara
中科院分区：
文献类型：
--
作者：
Tatsuhiro Yamamoto;Tatsuya Yamashita;Seiya Niihara
模拟技术的引入导致了可以在建筑设计中实施的分析结果的增长。能量模拟（ES）和计算流体动力学（CFD）主要用于建筑物能量模拟。虽然从模拟结果中获得的预测平均投票（PMV）通常被用作人体评价指标，但人体热模型的热平衡更精确。此外，PMV的计算应基于非稳态热生理。因此，这项研究形成了初始阶段的热生理估计的不稳定分析和“集中”的案例研究，如稳态分析，在强制对流占主导地位的环境。结果表明，对流换热系数在强迫对流场中占主导地位，因此，在与人体热生理结果进行比较时，不需要进行收敛计算。皮肤表面温度与使用收敛计算获得的衣服温度之间的差异最大为0.5 °C。我们根据案例研究，在不同的空调入口角度的情况下进行了比较试验，这通常是在设施设计阶段进行的。此后，我们证实了CHTC变化对热生理的影响及其对PMV计算值的贡献。尽管分析PMV结果显示值超出应用范围（≤−3.0），但它们主要在正常范围内。此外，当角度设置为60°以投射到地板上时，观察到壁温的差异约为2 °C。这项研究的基础上，进一步开发仿真模型，旨在将耦合分析方法应用到未来的建筑设计。
The introduction of simulation technologies has resulted in the growth of analytical results that can be implemented in building design. Energy simulations (ESs) and computational fluid dynamics (CFD) are primarily used in building energy simulations. Although the predicted mean vote (PMV) obtained from simulation results is typically used as a human-body evaluation index, the heat balance of a human thermal model is more precise. Moreover, the PMV should be calculated based on unsteady thermophysiology. Therefore, this study forms the initial phase for the thermophysiological estimation of unsteady analysis and “focused” case studies, such as steady-state analysis, in an environment where forced convection is dominant. It was revealed that the convective heat-transfer coefficient (CHTC) was dominant in a forced convection field; therefore, the convergent calculation in the suggested coupled analysis model was not necessary when comparing the results of human thermophysiology. The difference between the temperatures of the skin surface and that obtained with clothing using the convergent calculation was a maximum of 0.5 °C. We conducted comparative tests between different inlet-angle cases of air conditioners based on case studies, which were typically conducted during the facility design stage. Thereafter, we confirmed the influence of CHTC variations on thermophysiology and their contribution to the PMV calculation values. Although the analytical PMV results showed values outside of the application range (≤−3.0), they primarily fell within the normal range. Moreover, when the angle was set at 60° to project onto the floor, a difference of approximately 2 °C in the wall temperature was observed. This study forms the basis for further developing simulation models that aim to apply a coupled analysis method to future building designs.